Cleveland-Cliffs has been granted a patent for a defect detection and remediation system designed for cast metals. The system utilizes ultrasonic waves to identify subsurface defects and employs lasers for remediation, enhancing the quality control during the continuous casting process. GlobalData’s report on Cleveland-Cliffs gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Cleveland-Cliffs, was a key innovation area identified from patents. Cleveland-Cliffs's grant share as of July 2024 was 79%. Grant share is based on the ratio of number of grants to total number of patents.
Defect detection and remediation system for cast metal
The patent US12042850B2 describes a sophisticated defect detection and remediation system specifically designed for cast metal applications. The system comprises a detection device and a remediation device. The detection device features multiple detection units that utilize signal generators to produce ultrasonic waves directed at the cast metal's surface, allowing for the identification of defects near the surface without direct physical contact. These detection units are equipped with receivers that capture signals generated by the ultrasonic waves, enabling the system to assess the presence, size, and position of any defects. The remediation device includes laser-based remediation units that can address detected defects in real-time, particularly during the continuous casting process when the metal is at elevated temperatures, up to approximately 1,000°C.
The operational method outlined in the patent involves translating the cast metal relative to the detection and remediation system. Initially, the system detects defects using the detection device, which operates without physical coupling to the cast metal. Upon identifying a defect, the system evaluates whether remediation is necessary based on the defect's characteristics. If remediation is warranted, the system employs the laser units to treat the defect through various methods, including ablation, melting, grinding, or scarfing. This innovative approach not only enhances the quality of cast metal products but also allows for timely interventions during the casting process, potentially reducing waste and improving overall production efficiency.
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